Williams Canyon, near Manitou Springs, Colorado--men quarrying stone W.M. Pierson and two sons of Alton, IL?, Box: 114, item: C:283. William E. Culver photographic collection, RH PH 75. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/510664 Accessed November 22, 2024.